#ifndef SRC_BASE_OBJECT_H_
#define SRC_BASE_OBJECT_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include "v8.h"

namespace node {

class Environment;

class BaseObject {
public:
    inline BaseObject(Environment* env, v8::Local<v8::Object> handle);
    inline virtual ~BaseObject();

    // Returns the wrapped object.  Returns an empty handle when
    // persistent.IsEmpty() is true.
    inline v8::Local<v8::Object> object();

    // The parent class is responsible for calling .Reset() on destruction
    // when the persistent handle is strong because there is no way for
    // BaseObject to know when the handle goes out of scope.
    // Weak handles have been reset by the time the destructor runs but
    // calling .Reset() again is harmless.
    inline v8::Persistent<v8::Object>& persistent();

    inline Environment* env() const;

    // The handle_ must have an internal field count > 0, and the first
    // index is reserved for a pointer to this class. This is an
    // implicit requirement, but Node does not have a case where it's
    // required that MakeWeak() be called and the internal field not
    // be set.
    template <typename Type>
    inline void MakeWeak(Type* ptr);

    inline void ClearWeak();

private:
    BaseObject();

    template <typename Type>
    static inline void WeakCallback(
        const v8::WeakCallbackInfo<Type>& data);

    v8::Persistent<v8::Object> persistent_handle_;
    Environment* env_;
};

} // namespace node

#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#endif // SRC_BASE_OBJECT_H_
